Meanwhile, Republican Senators have grown a set and are threatening they will call the Bidens to testify at a Senate trial if the democrats do impeach in the House.
Because what the senate Republicans want to do is distract you from the real issue at hand. They're trying to perform a standard parlour magician trick - 'look over here' - to get you to shift your eyes while the real act happens elsewhere.
Lets also reflect that the president didn't care if there was an actual investigation (i.e. Trump doesn't care if the Bidens are/were corrupt), he only cared about the announcement of an investigation because that would generate negative press headlines for his political opponent.
As it stands, the threat to call the Bidens to testify in the senate will probably be the theme song the Republicans will use for the next n months. Will they call them? Doubt it. The threat of calling them is much better for them than actually calling them and then not getting the dirt they wanted. The Republicans are playing games with headlines and the public is taking the bait, hook, line and sinker. Compare their behaviour with that of the Democrats, that didn't and haven't played "threat" games with who they would call before the current committee.
And you'll be singing the song of "What if they had of called the Bidens" all through next year too because the Republicans won't but you already think they should.